Study of natural forces acting on floating ice fields /

Mode of access: Internet.

A plea for the natural sciences in the common schools ...

Excerpt from: Indiana school journal, v.34, July 1889, no.7

Coal & Illinois industry : the impact of the National Energy Acts of 1978 : conference proceedings of May 9-10, 1979 at the Conrad Hilton, Chicago, /

Bibliography: p. 24.

Coal & Illinois industry : the impact of the National Energy Acts of 1978 /

Doc. No. 79/33.

Mandatory carriage and the price of natural gas /

"November, 1983."-- Cover, p. 1.

Annals of the Lyceum of Natural History of New York.

Mode of access: Internet.

Preservation of natural conditions,

"Reprinted for the Committee, 1921, with the aid of the National research council."

A statistical postwar survey on the natural sciences and German universities.

Cover title.

Annals of the Lyceum of Natural History of New-York.

Mode of access: Internet.

Proceedings of the Davenport Academy of Sciences

Appendix to v. 4: Elephant pipes and inscribed tablets in the museum of the Academy of Natural Sciences, Davenport, Iowa. By Charles E. Putnam, p. [253]-347

Beech-maple region : inventory of natural areas and sites recommended as potential natural landmarks /

Prepared under contract 14-10-9-990-186, Article II as revised 5 April 1970 with the U.S. Dept. of the Interior, National park Service.

Annual report of the Division of Life Sciences /

Mode of access: Internet.